Former Wisoncsin prosecutor Ken Kratz, pictured in his law firm photo, might take legal action for the way he was portrayed in the Netflix series "Making a Murderer." Photo: Kratz Law Firm

Ken Kratz, the Wisconsin lawyer from the Netflix series "Making a Murderer," is "considering" filing suit against the filmmakers, he told Radar Online in an exclusive interview Wednesday. Kratz has been villainized by some viewers of the series, which documents the Steven Avery case. Avery, a resident of Manitowoc, Wisconsin, is serving life in prison without the chance of parole for the 2005 murder of photographer Teresa Halbach. Avery, family members, and thousands of Internet followers claim he is innocent of the crime.

Kratz said sending Avery, now 53, to prison was just in a day’s work. “My job was to convince twelve people of this man’s guilt and I did that. And that, from my perspective, should have been the end of my involvement,” he told Radar Online.

"Making A Murderer" subject Steven Avery reportedly believed his brothers, Earl and Charles, were responsible for the death of Teresa Halbach.Photo: Netflix

Now, the lawyer says he might file a defamation lawsuit against the filmmakers. “Any response is being considered by me at this time,” he said. “I’ve been asked, ‘Am I going to write a book, am I going to respond in a formal way, or try to create a rebuttal documentary,' ” he added. “I’m being encouraged to do all of those things, and I’m considering it.”

Aside from possibly sending an innocent man to prison, there’s another reason some people don't like Kratz. During his interview with Radar Online, he omitted that he was involved in a 2009 sexting scandal — a fact that was brought up at the end of "Making a Murderer." He sent inappropriate messages to female victims of domestic violence and has since resigned as Calumet County district attorney.

One of the messages he sent to his victims read: “I’m the atty. I have the $350,000 house. I have the 6-figure career. You may be the tall, young, hot nymph, but I am the prize!”